Regardless of how Sony originally wanted to market this new "Exmor R" sensor; this new technology allows significantly higher incident angle of incoming light to be captured, effectively solving the problem of why CMOS cannot be used on dRF, pushing CMOS technology closer to CCD.
I am going even as far as guessing this technology can be improved so much that it performs better than CCD on the full frame vignetting problem, so a full frame CMOS seems somewhat natural to me.